<!DOCTYPE html>
<html lang="en">
<head>

</head>
<body>
<div style="width:100%;text-align: center">
    <iframe
        style="border: 1px solid orange ; display:inline ;width:48%; height: 600px;margin-right: 1%"
        src="client.html?name=111"
    ></iframe>
    <iframe style="border: 1px solid darkblue ; display:inline ;width:48%; height: 600px;margin-left: 1%"
        src="client.html?name=222"
    ></iframe>
</div>
</body>
</html>